Okay, I tested on Firefox, Safari and Chrome on Mac OS X 10.5 as well as Windows XP and the button is positioned correctly. So I’m afraid I can’t really troubleshoot myself. I believe though this is what you’ll need to change but you’ll want to add this to your custom.css since this is a customization and we don’t recommend altering layout.css (customizations may be lost in future updates).

.feedback_button {
left: -32px;
}

Default is -32px, you’ll want to go higher like -42px.

I suggest though you check the website on another computer first just to make sure it’s not an issue with your computer alone. In the meantime, I’m going to tag the rest of support team to check as well.